The LoRaWAN protocol defines a series of data transmission rates. Different chips have different speed ranges. For example, SX1272 supports 0.3-38.4kbps, and SX1276 supports 0.018-38.4kbps.
LoRaWAN is used in non-real-time systems such as intelligent security and smart agriculture. There is a certain delay in sending and receiving data each time, and the amount of data sent and received each time is relatively small. It is suitable for transmitting dozens of bytes of small data, such as sensor report, water meter, and electricity meter data upload. If you upload data frequently, the LoRaWAN system is not suitable.
The difference between LoRaWAN and LoRa is that LoRa is a technology, and LoRaWAN is a set of standard specifications, like the relationship between NB-IoT and 3GPP TR.